body {
      background-color: #f8f9fa;
      display: flex;
      justify-content: center;
      align-items: center;
      min-height: 100vh;
      margin: 0;
      padding: 0;
      overflow-x: hidden;
  }

  .background {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      z-index: -2;
      background-color: #333;
      background-size: cover;
  }

  .login-card {
      display: flex;
      background-color: white;
      border-radius: 20px;
      box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
      width: 900px;
      max-width: 95%;
      overflow: hidden;
      position: relative;
  }

  .login-image {
      flex: 1;
      background-color: #333;
      padding: 40px;
      position: relative;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      color: white;
  }

  .login-image::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-size: cover;
      opacity: 0.2;
  }

  .login-image .illustration {
      position: relative;
      z-index: 1;
      max-width: 80%;
      margin-bottom: 20px;
  }

  .login-form {
      flex: 1;
      padding: 50px 40px;
      display: flex;
      flex-direction: column;
      justify-content: center;
  }

  .login-header {
      text-align: center;
      margin-bottom: 40px;
  }

  .login-header .avatar {
      width: 70px;
      height: 70px;
      border-radius: 50%;
      background-color: #f0f0f0;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 15px;
  }

  .login-header .avatar i {
      font-size: 30px;
      color: #333;
  }

  .login-header h1 {
      font-size: 28px;
      color: #333;
      margin-bottom: 5px;
      font-family: 'Playfair Display', serif;
  }

  .form-group {
      margin-bottom: 25px;
      position: relative;
  }

  .form-group label {
      display: block;
      margin-bottom: 8px;
      font-weight: 500;
      color: #666;
      font-size: 14px;
  }

  .form-control {
      width: 100%;
      padding: 15px 15px 15px 40px;
      border: none;
      border-bottom: 2px solid #ddd;
      border-radius: 0;
      font-size: 16px;
      transition: all 0.3s;
      background-color: transparent;
  }

  .form-control:focus {
      border-color: #333;
      outline: none;
  }

  .form-group i {
      position: absolute;
      left: 10px;
      top: 42px;
      color: #999;
      font-size: 18px;
  }

  .forgot-link {
      text-align: right;
      margin-top: -15px;
      margin-bottom: 25px;
  }

  .forgot-link a {
      color: #666;
      font-size: 14px;
      text-decoration: none;
  }

  .forgot-link a:hover {
      color: #333;
      text-decoration: underline;
  }

  .btn-login {
      width: 100%;
      padding: 15px;
      background-color: #333;
      color: white;
      border: none;
      border-radius: 50px;
      font-size: 16px;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.3s;
      text-transform: uppercase;
      letter-spacing: 1px;
  }

  .btn-login:hover {
      background-color: #555;
      transform: translateY(-3px);
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  }

  .login-footer {
      text-align: center;
      margin-top: 30px;
      font-size: 14px;
      color: #666;
  }

  .login-footer a {
      color: #333;
      text-decoration: none;
      font-weight: 600;
  }

  .login-footer a:hover {
      text-decoration: underline;
  }

  .error-message {
      background-color: #f8d7da;
      color: #721c24;
      padding: 12px 15px;
      border-radius: 6px;
      margin-bottom: 25px;
      text-align: center;
      font-size: 14px;
  }

  .back-link {
      position: absolute;
      top: 20px;
      left: 20px;
      color: white;
      text-decoration: none;
      font-size: 14px;
      z-index: 10;
      display: flex;
      align-items: center;
  }

  .back-link i {
      margin-right: 5px;
  }

  .back-link:hover {
      text-decoration: underline;
  }

  @media (max-width: 768px) {
      .login-card {
          flex-direction: column;
          width: 95%;
      }

      .login-image {
          display: none;
      }

      .login-form {
          padding: 40px 30px;
      }

      .back-link {
          color: #333;
          top: 15px;
          left: 15px;
      }
  }